Understand the legal framework governing workplace investigations, including anti-harassment, anti-retaliation, and privacy laws. While requirements vary by jurisdiction, aim for non-discriminatory, fair procedures that comply with applicable regulations and organizational policies.

Confidentiality and data protection are critical. Limit access to information on a need-to-know basis, implement data minimization, and maintain secure storage and retention schedules. Clearly communicate confidentiality limits to participants and stakeholders.

Retention of records should align with policy and legal obligations. Define who can access files, how long to keep them, and steps to protect complainants from retaliation. Provide protections and support for witnesses sharing information.